package com.htiiot.status.kafka;

import com.htiiot.common.config.ConfigFactory;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.config.KafkaListenerContainerFactory;
import org.springframework.kafka.core.ConsumerFactory;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
import org.springframework.kafka.listener.ConcurrentMessageListenerContainer;

import java.util.HashMap;
import java.util.Map;

/**
 * kafka配置
 *
 * @author 李延念
 * @create 2018-09-26 9:50
 **/
@Configuration
@EnableKafka
public class KafkaConsumerConfig {

    @Bean
    public KafkaListenerContainerFactory<ConcurrentMessageListenerContainer<String, String>> kafkaListenerContainerFactory() {
        ConcurrentKafkaListenerContainerFactory<String, String> factory = new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactory());
        factory.setConcurrency(Integer.parseInt(ConfigFactory.getConfigMgr().get("kafka.consumer","readingKafka.thread.num","5")));
        factory.getContainerProperties().setPollTimeout(1500);
        return factory;
    }

    public ConsumerFactory<String, String> consumerFactory() {
        return new DefaultKafkaConsumerFactory<>(consumerConfigs());
    }


    public Map<String, Object> consumerConfigs() {
        Map<String, Object> propsMap = new HashMap<>();
        propsMap.put( ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, ConfigFactory.getConfigMgr().get("kafka.consumer","bootstrap.servers"));
        propsMap.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, false);
        propsMap.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, 1000);
        propsMap.put(ConsumerConfig.SESSION_TIMEOUT_MS_CONFIG, 30000);
        propsMap.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        propsMap.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        propsMap.put(ConsumerConfig.GROUP_ID_CONFIG, "devicestatus-test25");
        //propsMap.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, ConfigFactory.getConfigMgr().get("kafka.consumer","auto.offset.reset"));
        propsMap.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
        return propsMap;
    }

    @Bean
    public Listener listener() {
        return new Listener();
    }
}
